Show simple item record

dc.contributor.authorOleszczuk, Barbara
dc.contributor.authorSilberberger, Marc Jürgen
dc.contributor.authorGrzelak, Katarzyna
dc.contributor.authorWinogradow, Aleksandra
dc.contributor.authorDybwad, Christine Schumann
dc.contributor.authorPeeken, Ilka
dc.contributor.authorWiedmann, Ingrid
dc.contributor.authorKędra, Monika
dc.date.accessioned2023-10-12T06:45:30Z
dc.date.available2023-10-12T06:45:30Z
dc.date.issued2023-07-13
dc.description.abstractThe knowledge on benthic trophic relations is particularly important for understanding the functioning of still pristine and less studied Arctic Ocean ecosystems. This study examines the benthic food-web structure in the European sector of the Arctic Ocean and assesses if and how it differs along depth gradients in the marginal seaice zone during spring. Samples of the sediment organic matter were collected in May/June 2015 and May 2016 at stations representing different sedimentary habitats (fjord, shelf, slope/basin), and stable isotopes of δ<sup>13</sup>C and δ<sup>15</sup>N were used to determine macro- and meiofauna food-web structure. Our results show that the food-web structure differed both among the three studied habitat types and between macro- and meiofauna components of benthic communities, and that these differences were related to the quality and quantity of organic matter. Meiofauna in fjords and on the shelf mainly relied on the reworked sediment organic matter while macrofauna utilized more fresh organic matter, sedimenting to the sea floor. In fjords and on the shelf, benthos displayed a high degree of omnivory and non-selective feeding while on the slope and in deep basins feeding on higher trophic levels dominated. In the latter, benthos seemed also to have utilized highly reworked organic matter. As the organic matter quantity and quality were major drivers of trophic relations in all studied areas, the benthic food webs will likely face cascading effects following the modification of pelagic food webs due to climatic changes.en_US
dc.identifier.citationOleszczuk, Silberberger, Grzelak, Winogradow, Dybwad, Peeken, Wiedmann, Kędra. Macrofauna and meiofauna food-web structure from Arctic fjords to deep Arctic Ocean during spring: A stable isotope approach. Ecological Indicators. 2023;154en_US
dc.identifier.cristinIDFRIDAID 2177191
dc.identifier.doi10.1016/j.ecolind.2023.110487
dc.identifier.issn1470-160X
dc.identifier.issn1872-7034
dc.identifier.urihttps://hdl.handle.net/10037/31527
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.relation.journalEcological Indicators
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/H2020/869383/EU/Arctic biodiversity change and its consequences: Assessing, monitoring and predicting the effects of ecosystem tipping cascades on marine ecosystem services and dependent human systems/ECOTIP/en_US
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2023 The Author(s)en_US
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0en_US
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)en_US
dc.titleMacrofauna and meiofauna food-web structure from Arctic fjords to deep Arctic Ocean during spring: A stable isotope approachen_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


File(s) in this item

Thumbnail

This item appears in the following collection(s)

Show simple item record

Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)